Question Factor the expression 15(1−5a) Evaluate 15−75aSolution 15(1−5a) Show Solution Find the roots a=51Alternative Form a=0.2 Evaluate 15−75aTo find the roots of the expression,set the expression equal to 0 15−75a=0Move the constant to the right-hand side and change its sign −75a=0−15Removing 0 doesn't change the value,so remove it from the expression −75a=−15Change the signs on both sides of the equation 75a=15Divide both sides 7575a=7515Divide the numbers a=7515Solution a=51Alternative Form a=0.2 Show Solution